Games like Circuit Overload
Games like Circuit Overload include Megabonk, Deep Rock Galactic: Survivor, Vampire Survivors, The Spell Brigade, and Brotato. We matched them by the tags players give Circuit Overload on Steam (Action Roguelike, Bullet Heaven, Bullet Hell, Online Co-Op, and Roguelite): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Action Roguelike · Bullet Heaven · Roguelite

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

The Spell Brigade
Shared: Bullet Heaven · Online Co-Op · Bullet Hell

Brotato
Shared: Action Roguelike · Bullet Hell · Bullet Heaven

Soulstone Survivors
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Death Must Die
Shared: Action Roguelike · Bullet Hell · Roguelite

Halls of Torment
Shared: Action Roguelike · Bullet Hell · Roguelite

Roboquest
Shared: Action Roguelike · Roguelite · Online Co-Op

Nova Drift
Shared: Bullet Hell · Action Roguelike · Roguelite

Yet Another Zombie Survivors
Shared: Bullet Heaven · Action Roguelike · Roguelite

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

BALL x PIT
Shared: Bullet Hell · Roguelite · Action Roguelike

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Roguelite

Nordic Ashes: Survivors of Ragnarok
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Tower of Babel: Survivors of Chaos
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Temtem: Swarm
Shared: Bullet Heaven · Action Roguelike · Online Co-Op

Rogue: Genesia
Shared: Bullet Heaven · Action Roguelike · Bullet Hell

Risk of Rain 2
Shared: Action Roguelike · Roguelite · Online Co-Op

Apocalypse Party
Shared: Action Roguelike · Online Co-Op · Bullet Hell

Hades
Shared: Action Roguelike · Roguelite · Action

Returnal™
Shared: Bullet Hell · Action Roguelike · Action

Time Wasters
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Enter the Gungeon
Shared: Action Roguelike · Bullet Hell · Indie